I think teams would be wiser to keep the get-in price lower, and have more upgrades/amenities be an additional cost or raised price. WiFi access, seat-delivery concessions, or a priority line at the stands, premium lounges, seat warmers, seat pads, anything at the stadium that's more than entrance & a set. Heck, have the option to "tip" a player a few NIL bucks from the team app when they make a great play on the field (send the majority of the donation to that player, and a smaller portion to a team fund).
Keeps your fans engaged & games accessible, and the cash can still keep flowing.
That ticket demand can dry up in a hurry with a couple mediocre seasons, and it happens a lot faster if the prices have been jacked up.